Nut-lock.



D. G. STANEK'.

NUT LOCK. v 7 APPLICATION FILED SEPT-1B. 19!].

1,277,146. Patented Aug. 27, 1918.

whereby the nut DOMINEK Gr. STANE To all whom it may Be it known that citizen of the United laka, in the county Montana,

useful Improvements in Nut-Locks;

the following to be a full,

do hereby declare mean s ra rns meeaeemea K, 013 EKALAKA,

MONTANA, AssIGNoRoF own-HALF ro B. '13. Guess AND w. n. enoss, BOTH orsYKEs, Mon'rANA;

I NUT-LOCK;

Specification'of Letters Patent. .7

Application and September 18, 19,17.

concern a I, DOMINEK G. b'rxnnn,

States, residing at Ekaof Carter and State of have invented certain new and and I clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the f same.

This invention relates to improvements in nut locks. V

The object of this invention is to provide an improved nut look by means of which a nut may be locked against rotatlon on the bolt and the improvement embodies means from the bolt may be readily removed without mutilating the threads of either the bolt or nut.

A still further object of this invention is to provide a nut lock in which the nut is which is adapted to engage longitudinally extending grooves cut in the threads of said bolt and the pawl beengaging the pawl ment in the recess grooved belt.

A. still further object formed of this invention is to provide a nut with a recess whiohintersects or communicates Wltll'thfi bore of the nut, a pawl removably cess, means on the arranged in the repawl for limiting the movement of the pawl in the recess toward the bore of the nut rounding said and a coil spring surpawl and engaging said means normally urging the pawl into engagement with the grooves of the bolt, and a wedge-shaped plate arranged-"1n the recess for holding the with the bolt by the A still further is to provide a nut which will be simple,

pawl into engagement action of the spring. I

object of this invention lock of this character, practical and comparathat can be manufactured and'sold at a low cost.

With these and other objects in view, the

invention consists in and arrangement of the novel combination,

parts hereinafter more groove engaging point 20.

Serial No.-191,98 1.'

hereto appended. In the drawings Figure 1 is aside elevation of a bolt illustrating'my improved nut lock fitted thereon.

Fig. 2 is a transverse sectional view taken Fig. 5 is a perspective view of the pawl, 5Q: and l Fig. 6 is afront elevation of the wedgeshaped looking plate.

fully described andset forth in the claims taken on the line Like numerals of reference designate cor- I responding parts in all the figures of the drawings.

Referring to the drawings, the numeral 5 designatesa bolt having the usual screw threaded shank 6 which is provided with a plurality nally extending grooves 7. The grooves are cutin the threads'in such a manner as to present the shoulders inclined surfacest) are formed.

The nut is designatedby the numerallO, vand provided with the usual central screw of relatively spaced longitudi-- 8 opposite which the threaded bore 11. The nut is provided on one side with an inwardly extending recess 12; The recess 12 'extends for the full length of the sides of-the .nut andis tapered fromone end to the'other to provideja dovetail socket 13,*the purpose of which will be hereinafter more fully described. The recessf'12 is provided centrally with an inwardly extending bore le which communicates with thebore 11 of the nut and the bore 14 is provided adjacent its inner end with a' shoulder'lS 7 which shoulder extends approximately two-thirds of the diameter" of the bore 14: as illustratedin Fig." 3.

The shoulder 15 is V manner as to form the inner end of the bore 14: rectangular,

as at 19, provides a bolt The tapered withan annular end is incllned constructed in such a whi hais adapted to receive therein the rectangular workingend 16 of a tively inexpensive in construction and one p f'The pawl "17 havingthe working end 16, whioh 'working end is provided at one end side edges beveled as at ing a recess formed shank 21 has its smaller end formed integrally with the upper side of the flange 18 as at 22and is concentrically related thereto to form a spring seat.

The pawl has its working end fitted in the bore 14 and shoulder 15 limiting the movement of the pawl in the bore 14 on the nut. A coil spring 23 surrounds the tapered shank 21 andhas one end abutting the upper side of the flange 18 while its opposite end extends beyond the upper or outer side of the shank 21 as clearly illustrated in Fig. 2 of the drawings.

A wedge-shaped retaining plate 24 has its 25 to permit the plate to be slidably arranged in the recess 12 and a wedging action set up due to the taper of the recess and configuration of the plate so as to bind the plate in the recess and the plate will engage the outer end of the spring 23 and normally urge the working end 20 of the pawl into engagement with one of the grooves 7 formed in the bolt 5 and thereby prevent reverse rotation of the nut thereon.

It will be apparent that a nut lock constructed in accordance with this invention and illustrated in the accompanying drawings may be readily removed from the bolt by virtue of removing the plate 24 from the recess 12 and permitting the pawl to be easily and quickly removed from the bore 14, whereby the nut may be freely turned from the bolt without mutilating either the bolt or nut.

What is claimed is 1. A nut lock comprising a bolt having a plurality of longitudinally extending grooves presenting shoulders and inclined faces, a nut adapted to befitted upon said bolt havin one side thereof, said recess provided centrally with an inwardly extending bore whichintersectsthe bore of the nut, a shoulder formed at the inner end ofthe bore, a pawl,.means carried by the pawl and engaging the shoulder of the bore for limiting the movement of the pawl therein, a shank formed integrally with said means, a spring surrounding said shank and normally urging the working end of the pawl into the bore of the nut, and a retaining plate slidablyarranged in said recess and engaging said spring for normally urging said pawl into engagement with the grooves of the bolt, as and for the purpose 2, A nut lock comprising a bolt having plurality of relatively spaced longitudinally extending grooves therein presenting shoul the flange 18 engages the ders and inclined faces, a nut fitted upon said bolt, said nut provided at one side with a transversely extending recess, the side walls of which are inclined to provide a dove-tail socket and the recess tapering from one end to the other, said recess provided centrally with an inwardly extending bore communicating with the bore of the nut, said bore having an inwardly extending shoulder formed therein, a pawl slidably mounted in the bore, a flange, one side of the flange engaging the shoulder of the bore for limiting the movement of the pawl therein, a tapered shank formed integrally with the flange and concentrically related thereto forming a seat, a spring surrounding said shank and engaging the seat formed by the flange for normally urging the pawl into engagement with the grooves of the bolt, and

-a wedge-shaped plate slidably arranged in the recess of the nut to retain wardly beyond the inner end formed in one side of the nut.

3. The combination with a bolt having a plurality of longitudinally extending grooves therein, a nut adapted to be fitted upon said bolt and provided in one side with a transverse dove-tail recess, said recess tapering from one end to the other, said side of the nut provided with an inwardly ex tending bore intersecting said recess and bore of the nut, a shoulder formed adjacent the inner end of the bore in the side of the nut providing a rectangular opening therein, a pawl having a working end, an annular flange formed at the opposite end of the pawl, a tapering shank having its smaller end formed integrally with the upper side of the flange and concentrically related the pawl inof the bore thereto forming a seat, said pawl adapted to be arranged in the bore in the side of the nut and its flange engaging the shoulder for limiting the inwardmovement of the pawl in the bore, a spring surrounding said tapered shank normally urging the working end of the pawl into the bore of the nut, and a wedge-shaped plate fitted in the dove-tail recess of the nut engaging the outer end of said spring for normally holding the pawl under tension and into engagement with the grooves of the bolt, as and for the purpose specified.

In testimony whereof I aflix my signature in presence-of two witnesses.

DOMINEK e. STANEK.

Vitnesses L. M. ELLIOTT, H. C. ALBERT.

. Copies of this patent may be obtained for five cents each, by addressing the flommis sioner of Patents,

' Washington, D. G. 

